Changed saveData()

Data will now only be save to DB if brand is entered
Added TestCigarActivity.java Test Class

This Test:
1. adds a new cigar
2. verifies that the cigar has been added to the list
3. reopens the cigar and verifies the inputs are correct
4. changes the rating and quantity
5. reopens the edited cigar and verifies thats the changes have been
saved
6. then deletes the cigar from the list
Updated

Now includes Robotium for testing